Lipid Disorders and Lipid Measurement Clinical Trial
— VLDLOfficial title:
The Very Large Database of Lipids (VLDL): A Clinical Laboratory Big Data Project
| Verified date | August 2023 |
| Source | Johns Hopkins University |
| Contact | n/a |
| Is FDA regulated | No |
| Health authority | |
| Study type | Observational |
Closer examination of granular lipid data in a large population offers numerous opportunities to generate new knowledge, ranging from studies examining concordance between commonly used lipid parameters to phenotypic characterization of rare or extreme disorders of lipid metabolism, opening possibilities to better personalize future treatment of abnormal blood lipids. STUDY POPULATION: The Very Large Database of Lipids (VLDL) includes adults and children who were clinically referred for a Vertical Auto Profile (VAP). Patient samples originated predominantly from outpatient primary care clinics in the U.S. (85%), along with specialty clinics and inpatient settings. LIPID MEASUREMENTS: The VAP test (VAP Diagnostics Lab, Birmingham, Alabama, USA) directly measures cholesterol concentrations of low density lipoprotein, very low density lipoprotein, intermediate density lipoprotein, high density lipoprotein, their subfractions, and lipoprotein(a). Triglycerides in the database are directly measured using the Abbott ARCHITECT C-8000 system (Abbott Park, Illinois, USA). Lipid distributions in the database closely match those from the population-representative National Health and Nutrition Examination Survey (NHANES). STUDY PROCEDURES: This database was investigator-initiated. Only de-identified data reach the investigational site. The master database is housed at The Johns Hopkins Hospital in Baltimore, Maryland, and maintained by Drs. Jones and Martin. The current database (2nd harvest) includes 5,051,467 patients whose laboratory samples were collected from October 1, 2015 and June 30, 2019. Only electronic data, and not blood samples, are sent to Hopkins. The academic investigators have unrestricted access to study data, take responsibility for the accuracy of analyses, and have authority over manuscript preparation and submission. VARIABLES: The variables currently in the VLDL database are testing date, age, sex, fasting/nonfasting, and components of the VAP test. From these primary variables, many additional variables were derived for inclusion in the master database. Other analytes measured by validated assays in subsets of the VLDL database include apolipoprotein B (apoB), apolipoprotein A1 (apoAI), high-sensitivity C-reactive protein (hsCRP), homocysteine, uric acid, insulin, hemoglobin A1c, 25-hydroxy vitamin D, cystatin C, lipoprotein-associated phosphatase (Lp-PLA2), thyroid stimulating hormone (TSH), free T3 and T4, pro-brain natriuretic peptide (pBNP), direct bilirubin, creatine phosphokinase (CPK), creatinine and other components of the comprehensive metabolic panel, magnesium, and phosphate.
| Status | Active, not recruiting |
| Enrollment | 5051467 |
| Est. completion date | April 2026 |
| Est. primary completion date | April 2026 |
| Accepts healthy volunteers | Accepts Healthy Volunteers |
| Gender | All |
| Age group | N/A and older |
| Eligibility | Patients with age and lipid data are included in the master database. Eligibility criteria are specific to each individual study. |
| Country | Name | City | State |
|---|---|---|---|
| United States | Johns Hopkins University | Baltimore | Maryland |
| Lead Sponsor | Collaborator |
|---|---|
| Johns Hopkins University | VAP Diagnostics Lab |
United States,
Ahmed, HM, Elshazly MB, Martin SS, Blaha MJ, Kulkarni KR, Jones SR. Ratio of Dense to Buoyant LDL Subclass is Associated with LDL Density Phenotype (VLDL-5). The Open Chemical and Biomedical Methods Journal 2013. 6:1-5.
Chilazi M, Zheng W, Park J, Marvel FA, Khoury S, Jones SR, Martin SS. Quantifying the contribution of lipoprotein(a) to all apoB containing particles. J Clin Lipidol. 2022 Mar-Apr;16(2):220-226. doi: 10.1016/j.jacl.2022.02.004. Epub 2022 Feb 12. — View Citation
Elshazly MB, Martin SS, Blaha MJ, Joshi PH, Toth PP, McEvoy JW, Al-Hijji MA, Kulkarni KR, Kwiterovich PO, Blumenthal RS, Jones SR. Non-high-density lipoprotein cholesterol, guideline targets, and population percentiles for secondary prevention in 1.3 mill — View Citation
Elshazly MB, Quispe R, Michos ED, Sniderman AD, Toth PP, Banach M, Kulkarni KR, Coresh J, Blumenthal RS, Jones SR, Martin SS. Patient-Level Discordance in Population Percentiles of the Total Cholesterol to High-Density Lipoprotein Cholesterol Ratio in Com — View Citation
Faridi KF, Lupton JR, Martin SS, Banach M, Quispe R, Kulkarni K, Jones SR, Michos ED. Vitamin D deficiency and non-lipid biomarkers of cardiovascular risk. Arch Med Sci. 2017 Jun;13(4):732-737. doi: 10.5114/aoms.2017.68237. Epub 2017 Jun 12. — View Citation
Faridi KF, Quispe R, Martin SS, Hendrani AD, Joshi PH, Brinton EA, Cruz DE, Banach M, Toth PP, Kulkarni K, Jones SR. Comparing different assessments of remnant lipoprotein cholesterol: The very large database of lipids. J Clin Lipidol. 2019 Jul-Aug;13(4): — View Citation
Lupton JR, Faridi KF, Martin SS, Sharma S, Kulkarni K, Jones SR, Michos ED. Deficient serum 25-hydroxyvitamin D is associated with an atherogenic lipid profile: The Very Large Database of Lipids (VLDL-3) study. J Clin Lipidol. 2016 Jan-Feb;10(1):72-81.e1. — View Citation
Lupton JR, Quispe R, Kulkarni K, Martin SS, Jones SR. Serum homocysteine is not independently associated with an atherogenic lipid profile: The Very Large Database of Lipids (VLDL-21) study. Atherosclerosis. 2016 Jun;249:59-64. doi: 10.1016/j.atherosclero — View Citation
Martin SS, Blaha MJ, Elshazly MB, Brinton EA, Toth PP, McEvoy JW, Joshi PH, Kulkarni KR, Mize PD, Kwiterovich PO, Defilippis AP, Blumenthal RS, Jones SR. Friedewald-estimated versus directly measured low-density lipoprotein cholesterol and treatment impli — View Citation
Martin SS, Blaha MJ, Elshazly MB, Toth PP, Kwiterovich PO, Blumenthal RS, Jones SR. Comparison of a novel method vs the Friedewald equation for estimating low-density lipoprotein cholesterol levels from the standard lipid profile. JAMA. 2013 Nov 20;310(19 — View Citation
Martin SS, Blaha MJ, Toth PP, Joshi PH, McEvoy JW, Ahmed HM, Elshazly MB, Swiger KJ, Michos ED, Kwiterovich PO, Kulkarni KR, Chimera J, Cannon CP, Blumenthal RS, Jones SR. Very large database of lipids: rationale and design. Clin Cardiol. 2013 Nov;36(11):641-8. doi: 10.1002/clc.22214. Epub 2013 Oct 1. — View Citation
Miller PE, Martin SS, Toth PP, Santos RD, Blaha MJ, Nasir K, Virani SS, Post WS, Blumenthal RS, Jones SR. Screening and advanced lipid phenotyping in familial hypercholesterolemia: The Very Large Database of Lipids Study-17 (VLDL-17). J Clin Lipidol. 2015 — View Citation
Pallazola VA, Sathiyakumar V, Park J, Vakil RM, Toth PP, Lazo-Elizondo M, Brown E, Quispe R, Guallar E, Banach M, Blumenthal RS, Jones SR, Marais D, Soffer D, Sniderman AD, Martin SS. Modern prevalence of dysbetalipoproteinemia (Fredrickson-Levy-Lees type — View Citation
Quispe R, Al-Hijji M, Swiger KJ, Martin SS, Elshazly MB, Blaha MJ, Joshi PH, Blumenthal RS, Sniderman AD, Toth PP, Jones SR. Lipid phenotypes at the extremes of high-density lipoprotein cholesterol: The very large database of lipids-9. J Clin Lipidol. 201 — View Citation
Quispe R, Brownstein AJ, Sathiyakumar V, Park J, Chang B, Sajja A, Guallar E, Lazo M, Jones SR, Martin SS. Utility of non-HDL-C and apoB targets in the context of new more aggressive lipid guidelines. Am J Prev Cardiol. 2021 May 29;7:100203. doi: 10.1016/ — View Citation
Quispe R, Hendrani AD, Baradaran-Noveiry B, Martin SS, Brown E, Kulkarni KR, Banach M, Toth PP, Brinton EA, Jones SR, Joshi PH. Characterization of lipoprotein profiles in patients with hypertriglyceridemic Fredrickson-Levy and Lees dyslipidemia phenotype — View Citation
Quispe R, Manalac RJ, Faridi KF, Blaha MJ, Toth PP, Kulkarni KR, Nasir K, Virani SS, Banach M, Blumenthal RS, Martin SS, Jones SR. Relationship of the triglyceride to high-density lipoprotein cholesterol (TG/HDL-C) ratio to the remainder of the lipid prof — View Citation
Sajja A, Park J, Sathiyakumar V, Varghese B, Pallazola VA, Marvel FA, Kulkarni K, Muthukumar A, Joshi PH, Gianos E, Hirsh B, Mintz G, Goldberg A, Morris PB, Sharma G, Blumenthal RS, Michos ED, Post WS, Elshazly MB, Jones SR, Martin SS. Comparison of Metho — View Citation
Sathiyakumar V, Pallazola VA, Park J, Vakil RM, Toth PP, Lazo-Elizondo M, Quispe R, Guallar E, Banach M, Blumenthal RS, Jones SR, Martin SS. Modern prevalence of the Fredrickson-Levy-Lees dyslipidemias: findings from the Very Large Database of Lipids and — View Citation
Sathiyakumar V, Park J, Golozar A, Lazo M, Quispe R, Guallar E, Blumenthal RS, Jones SR, Martin SS. Fasting Versus Nonfasting and Low-Density Lipoprotein Cholesterol Accuracy. Circulation. 2018 Jan 2;137(1):10-19. doi: 10.1161/CIRCULATIONAHA.117.030677. E — View Citation
Swiger KJ, Martin SS, Blaha MJ, Toth PP, Nasir K, Michos ED, Gerstenblith G, Blumenthal RS, Jones SR. Narrowing sex differences in lipoprotein cholesterol subclasses following mid-life: the very large database of lipids (VLDL-10B). J Am Heart Assoc. 2014 — View Citation
Varghese B, Park J, Chew E, Sajja A, Brownstein A, Pallazola VA, Sathiyakumar V, Jones SR, Sniderman AD, Martin SS. Importance of the triglyceride level in identifying patients with a Type III Hyperlipoproteinemia phenotype using the ApoB algorithm. J Cli — View Citation
Zheng W, Chilazi M, Park J, Sathiyakumar V, Donato LJ, Meeusen JW, Lazo M, Guallar E, Kulkarni KR, Jaffe AS, Santos RD, Toth PP, Jones SR, Martin SS. Assessing the Accuracy of Estimated Lipoprotein(a) Cholesterol and Lipoprotein(a)-Free Low-Density Lipopr — View Citation
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| Type | Measure | Description | Time frame | Safety issue |
|---|---|---|---|---|
| Primary | Low-density lipoprotein cholesterol level | Low-density lipoprotein cholesterol levels measured in milligrams per deciliter. | 4 years |